Bridge integrated concentric water distributor

Abstract

The invention discloses a bridge-type integrated concentric water distributor, which belongs to the field of oilfield water injection. The bridge-type integrated concentric water distributor includes an upper joint, a main barrel, a movable barrel, a fixed seat and a lower joint: the main barrel includes an adjustment section and a positioning section, the adjustment section is provided with a water injection hole and a bridge-type through hole, and the positioning section is provided with several The water-passing incision connected with the corresponding bridge-type through hole; the movable cylinder and the main cylinder have the same axis; the movable cylinder is also fixed with a movable water nozzle, and the water injection amount can be adjusted only by rotating the movable cylinder, and the adjustment accuracy is high. The workload is reduced; the fixed seat is provided with a central through hole communicating with the movable cylinder; the fixed seat is provided with a flow-through hole passing through the central through hole, and a receiving cavity is provided between the outer peripheral surface of the fixed seat and the inner peripheral surface of the movable cylinder , and the receiving cavity is connected with the bridge through hole and the flow hole, so that a part of the injected water flows through the flow hole to the next-level bridge-type integrated concentric water distributor connected with the lower joint, so as to ensure the other needs of water injection for layered water distribution. normal water injection of the reservoir.

Description

technical field [0001] The invention relates to the field of oil field water injection, in particular to a bridge-type integrated concentric water distributor used for water injection in a water injection well. Background technique [0002] At present, with the shortage of crude oil in the world, people pay more and more attention to how to improve the oil recovery rate of developed oilfields. Oilfield water injection is a common method in the process of oilfield exploitation. [0003] In recent years, with the development and improvement of bridge eccentric and conventional eccentric injection technology, it has also been widely used in major oil fields. Both of these two technologies adopt eccentric layered water distribution operations. When carrying out oil field water injection, it is necessary to pass the test and deployment, so that the injected water flow rate can meet the requirements. At present, when the eccentric layered water distribution operation in my count...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned oilfield water injection test and deployment process, the repeated fishing and replacement of the faucet is heavy workload, the success rate of instrument docking is low, and the deployment accuracy is poor, and there are low test and adjustment success rate and efficiency in high-deviation wells and deep wells. For the problem of high operational risk, the embodiment of the present invention provides a bridge-type integrated concentric water distributor

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